81966881 ÷ 532 
The aim is to understand the frequency of 532 in 81966881.

Moving on to step 1:
8 divided by 532 is 0 with a remainder of 8.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 8 after subtracting 0 from 8.
Grab the next digit (1) from the dividend, add it to 8, then carry on: 81 / 532

Advancing to step 2:
532 goes into 81 0 times with a remainder of 81.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 81, we end up with 81.
Include the next digit (9) from the dividend after 81, then repeat: 819 / 532

Step 3:
532 goes into 819 1 times with a remainder of 287.
The next digit of our result is 1. 
Result so far: 1.0
Deduct 532 from 819 and we're left with 287.
Fetch the next digit (6) from the dividend, attach it to 287 and continue: 2876 / 532

Going ahead to step 4:
If we divide 2876 by 532, we get 5 and a remainder of 216.
Record the quotient 5 as the next digit in the result. 
Result so far: 15.0
Deduct 2660 from 2876 and we're left with 216.
Include the next digit (6) from the dividend after 216, then repeat: 2166 / 532

Advancing to step 5:
532 can be fit into 2166 4 times, resulting in a remainder of 38.
Use 4 as the next digit of our solution. 
Result so far: 154.0
Subtract 2128 from 2166 to get 38.
Append the next digit (8) from the dividend to 38 and continue with: 388 / 532

Going ahead to step 6:
388 divided by 532 is 0 with a remainder of 388.
Record the quotient 0 as the next digit in the result. 
Result so far: 1540.0
Subtracting 0 from 388 leaves us with 388.
Fetch the next digit (8) from the dividend, attach it to 388 and continue: 3888 / 532

Moving on to step 7:
When dividing 3888 by 532, we get 7 with a remainder of 164.
Put 7 as the next digit of the answer. 
Result so far: 15407.0
The remainder is 164 after subtracting 3724 from 3888.
Bring next digit (1) of the dividend behind the 164 and repeat the process: 1641 / 532

Moving on to step 8:
The number 532 fits into 1641 3 times, leaving a remainder of 45.
The number 3 becomes the next digit in our result. 
Result so far: 154073.0
Deduct 1596 from 1641 and we're left with 45.
Since there are no more digits in the dividend, we add a zero to the remainder making it 450, and continue the process.

Advancing to step 9:
When dividing 450 by 532, we get 0 with a remainder of 450.
Write down 0 as next digit of the result. 
Result so far: 154073.0
Subtract 0 from 450 to get 450.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4500, and continue the process.

Let's proceed to step 10:
532 can be fit into 4500 8 times, resulting in a remainder of 244.
Write down 8 as next digit of the result. 
Result so far: 154073.08
If we subtract 4256 from 4500, we get 244.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2440, and continue the process.

On to step 11:
532 can be fit into 2440 4 times, resulting in a remainder of 312.
Put 4 as the next digit of the answer. 
Result so far: 154073.084
Subtract 2128 from 2440 to get 312.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3120, and continue the process.

Moving on to step 12:
The number 532 fits into 3120 5 times, leaving a remainder of 460.
The number 5 becomes the next digit in our result. 
Result so far: 154073.0845
Subtracting 2660 from 3120 leaves us with 460.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4600, and continue the process.

Let's proceed to step 13:
If we divide 4600 by 532, we get 8 and a remainder of 344.
The next digit of our result is 8. 
Result so far: 154073.08458
If we subtract 4256 from 4600, we get 344.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3440, and continue the process.

Step 14:
532 goes into 3440 6 times with a remainder of 248.
Use 6 as the next digit of our solution. 
Result so far: 154073.084586
If we subtract 3192 from 3440, we get 248.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2480, and continue the process.

Going ahead to step 15:
2480 divided by 532 is 4 with a remainder of 352.
The next digit of our result is 4. 
Result so far: 154073.0845864
If we subtract 2128 from 2480, we get 352.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3520, and continue the process.

Going ahead to step 16:
The number 532 fits into 3520 6 times, leaving a remainder of 328.
The number 6 becomes the next digit in our result. 
Result so far: 154073.08458646
The remainder is 328 after subtracting 3192 from 3520.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3280, and continue the process.

After the division, we end up with 154073.08458646 and a remainder of 3.28e-07.